GB1226191A - - Google Patents
Info
- Publication number
- GB1226191A GB1226191A GB1226191DA GB1226191A GB 1226191 A GB1226191 A GB 1226191A GB 1226191D A GB1226191D A GB 1226191DA GB 1226191 A GB1226191 A GB 1226191A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blow
- inflation
- pressure
- expanding agent
- aug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- 229920001169 thermoplastic Polymers 0.000 abstract 2
- 239000004416 thermosoftening plastic Substances 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000000071 blow moulding Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/0005—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
1,226,191. Blow-moulding; expanded walls. CHEMISCHE WERKE HULS A.G. 9 Aug., 1968 [12 Aug., 1967], No. 38189/68. Heading B5A. Blow-moulded hollow articles are produced from thermoplastics containing an expanding agent by extruding a tubular parison, introducing it into the blow-mould, and inflating it therein, in a chamber at a pressure higher than the expansion pressure of the expanding agent and then decreasing the pressure during or after the inflation to expand the expanding agent while the article is still thermoplastic. Pressure decrease is effected after inflation if a smooth-walled article is desired or during inflation if no unexpanded skin is desired since this will avoid contact with the mould wall which would cause skin formation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC0043098 | 1967-08-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1226191A true GB1226191A (en) | 1971-03-24 |
Family
ID=7025223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1226191D Expired GB1226191A (en) | 1967-08-12 | 1968-08-09 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1704543A1 (en) |
| FR (1) | FR1577594A (en) |
| GB (1) | GB1226191A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3708006A1 (en) * | 1987-03-12 | 1988-09-22 | Kautex Maschinenbau Gmbh | METHOD FOR PRODUCING HOLLOW BODIES FROM THERMOPLASTIC PLASTIC WITH A MULTILAYERED WALL |
-
1967
- 1967-08-12 DE DE19671704543 patent/DE1704543A1/en active Pending
-
1968
- 1968-08-01 FR FR1577594D patent/FR1577594A/fr not_active Expired
- 1968-08-09 GB GB1226191D patent/GB1226191A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1577594A (en) | 1969-08-08 |
| DE1704543A1 (en) | 1971-05-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |